Study of Soil Fertility Status in Some Use of Rubber Plant Land in Pandeglang and Lebak Regencies, Banten Province

This research aims to determine soil fertility in some rubber plantations area. This research is expected to be used as basic information in increasing the production of rubber plants. This research was conducted in Banjar Village, Pandeglang Regency and Wanasalam Village, Lebak Regency, Banten Province. In the research location, 2 soil samples were taken and then analyzed at the Agro-climate and soil Laboratory, Faculty of Agriculture, Sultan Ageng Tirtayasa University. The parameters tested included C-Org, N-Total, pH, P, and K. The results of the analysis in the Laboratory showed that some of the soil chemical properties in the research location had low nutrient content and availability. This is due to the pH of the soil at the research location classified as quite sour. The determination results of the soil C-organic content at the research location from each location were classified as low with values ranging from 0.1 to 0.4. P and K content of both locations is classified as medium-low.